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A question of numbers (one for the maths fans)

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Topic: A question of numbers (one for the maths fans)

RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 8 of 215 (324840)
06-22-2006 11:20 AM

Reply to: Message 5 by Modulous
06-22-2006 8:50 AM

Heh. That little proof is sweet, Modulus!

Gonna crib that one for when I'm down at the pub!

Edited by RickJB, : No reason given.

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RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 11 of 215 (324976)
06-22-2006 5:24 PM

Reply to: Message 10 by arachnophilia
06-22-2006 4:50 PM

Re: infigers

I'm gonna have to re-read this...

I would have loved to have been born with a gift for Maths...

I've been reading Roger Penrose's "The Emporer's New Mind". I can follow the logic of his ideas pretty well as I have a reasonable amount of programming experience but my skills fail as soon as the number problems become more technical.

I just can't "visualise" numbers very well. Give me a diagram, on the other hand, and I'm much happier!

Ah well..

Edited by RickJB, : No reason given.

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RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 36 of 215 (325199)
06-23-2006 6:43 AM

Reply to: Message 31 by riVeRraT
06-23-2006 6:10 AM

Re: Saucy numbers

2ice writes:

..can't be done logically

I'm no mathematician but I don't agree. Try flipping the subtraction around...

9.999.. - 9 = 0.999...

Now 9.999.. may be infinitely long, but we CAN know that the result will be exactly 9 less.

If we go back to the original

9.999.. -0.999... = 9

We CAN see that the number will be 0.999.. less. What's the problem?

Edited by RickJB, : No reason given.

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	Message 31 by riVeRraT, posted 06-23-2006 6:10 AM		riVeRraT has replied

Replies to this message:
	Message 38 by riVeRraT, posted 06-23-2006 7:00 AM		RickJB has replied

RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 42 of 215 (325216)
06-23-2006 8:12 AM

Reply to: Message 38 by riVeRraT
06-23-2006 7:00 AM

Re: Saucy numbers

riverrat writes:

The problem is that you are using a finite symbol to represent infinity.

So what?

For any given number x it's possible to argue that:

y = 5-x

even if 0.999... is the given number x!

Edited by RickJB, : No reason given.

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	Message 38 by riVeRraT, posted 06-23-2006 7:00 AM		riVeRraT has replied

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	Message 45 by riVeRraT, posted 06-23-2006 9:32 AM		RickJB has replied

RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 49 of 215 (325264)
06-23-2006 10:38 AM

Reply to: Message 45 by riVeRraT
06-23-2006 9:32 AM

Re: Saucy numbers

riverrat writes:

But that's what I am saying, 0.9999... is not a number.

Of course it is!

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RickJB

Member (Idle past 5018 days)

Posts: 917

From: London, UK

Joined: 04-14-2006

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Message 99 of 215 (325591)
06-24-2006 5:43 AM

Reply to: Message 63 by riVeRraT
06-23-2006 11:58 PM

riverrat writes:

Infinity is a subjective concept. If infinity exists, then so does God.
0.999... = God

What the...

What are you smoking, Riverrat?

This message is a reply to:
	Message 63 by riVeRraT, posted 06-23-2006 11:58 PM		riVeRraT has replied

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